Rear sight for shotguns.



OR 9109395 SR I. N. LAKE.

REAR SIGHT FOR SHOTGUNS.

APPLICATION FILED FEB. 14, 1909.

910,395. Patented Jan. 19, 1909.

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,. game, the point to be aimed at is left entirely UNITED. STA

ISAAC N. LAKE, OF FLASHER, NORTH DAKOTA.

REAR SIGHT FOR SHOTGUNS.

Specification of Letters Patent.

Patented Jan. 19, 1909.

Application filed February 14, 1908. Serial No. 415,941.

To all whom it may concern:

Be it known that I, ISAAC N. LAKE, a citizen of the United States,residing at Flasher, in the county of Morton, State of North Dakota,have invented certain new and useful Improvements in Rear Sights forShotguns; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to rear sights for shotguns.

Such sights as are now used upon shotguns are provided with but a singlesight notch and in shooting game, and particularly wild ducks on thewing, where it is absolutely necessary to aim at a point in advance ofthe to the discretion of the gunner. The location of this point, so tospeak, varies in ratio to the distance the objective is from the gunnerand consequently it is necessary, in order to make a successful shotunder such conditions, to be an expert marksman.

The object of my invention is to provide a sight of such constructionthat it may be applied to any shotgun now in use and which w' enable thegunner to fire exactly the proper distance in advance of the gamealthough aiming directly at it.

The means by which I arrive at the advantageous result will be apparentfrom the drawings, the specific descri tion which is to follow and theappended dlaims.

In the accompanying drawings, Figure 1 is a detail perspective view ofthe sight embodied in my invention, Fig. 2 is a vertical sectional viewtherethrough taken from front to rear, and, Fig. 3 is a top plan view ofthe said sight.

In the figures of the drawings, there is shown a sight comprising adove-tailed base 17 upon which is formed an n standing flange includinga section 18 which extends transversely of the base and right angularlyextended end sections 19 which extend in a downward direction. At theupper end, the transversely extending section 18 of the flange is formedwith a plurality of teeth 20, and formed upon the upper face of the base17, directly in advance of the section 18 of the flange is an upstandingguide rib 21 between which and the said section 18 of the block is asight leaf 22, the said leaf being formed at its ends with forwardlyprojecting ears 23. Set screws 2 1 are engaged through the rightangularly extended end sections 19 of the first described flange andthese set screws abut the said ears 23, it being understood that byturning the screws, the sight leaf may be adjusted longitudinally of thefirst described flange. It will be understood, of course, that the leafupon the flange and upon the sight leaf cooperate to form spaced notchesand it will further be understood that by adjusting the sight leaf inthe manner stated, the distance between the notches will be varied asalso their depth, it being also understood that this adjustment is hadfor the purpose of adapting the firearm for use in hunting game whichtravel at different speeds. For example, in hunting ducks which, as itis very well known, fly at a high rate of speed, the sight leaf isadjusted so as to lessen the depth of the notches formed by thecooperation of its teeth with the teeth upon the said flange. Thisadjusment not only serves to lessen the depth of the sight notches andconsequently adapt the sight for long range, but the distance betweenthe said notches is increased so that a gun will be pointed or directedat an objective point further in advance of the game than the said pointwould be under other conditions.

What is claimed, is

1. A sight for fire arms comprising a base, an upstanding flange formedupon the base and including right angularly turned end portions, theupper edge of the body of the flange being formed with teeth andresultant notches, and a sight leaf adjustably held against the saidbody of the flange and formed also with teeth and resultant notcheswhich cooperate with the teeth and notches first mentioned.

2. A sight for fire arms comprising a base, an upstanding flange formedupon the base and formed at its upper edge with a plurality of sightnotches, and a sight leaf disposed against the said flange andadjustable longitudinally thereof the said sight leaf being formed atits upper edge also with a plurality of notches which cooperate with thenotches at the upper edge of the flange.

3. A sight for fire arms comprisinga base, a flange formed upon the baseand projecting upwardly therefrom, the said flange being formed at itsupper edge with sight notches, a guide leaf formed upon the base andextending in spaced parallel relation with respect to the said flange,and a sight leaf enand the said guide leaf and formed also with 15 aplurality of notches, the said sight leaf being formed at its ends withright angularly F turned ears, and set screws engaged through the rightangularly turned end portions of the flange and with the ears at the endof the sight leaf whereby the said leaf may be adjusted with respect tothe flange.

In testimony whereof, I aflix my signature,

. in presence of two witnesses.

ISAAC N. LAKE.

guide leaf and the flange respect to the flange, the said sight leafbeing formed also with a plurality of notches in its upper edge.

4. A sight for fire arms comprising a base, a flange formed upon thebase and projecting upwardly therefrom, the said flange being formed atits upper edge with a plurality of sight notches, the said flange beingalso formed at its ends with right angularly turned portions, a guideleaf formed upon the upper face of the base and extending in I gagedbetween the and adjustable with itnesses RoswnLL DROWN,

spaced relation with respect to the flange, a

Gno. BERRIER.

sight leaf received between the said flange

